WO2017163576A1 - エンドミルの再利用方法 - Google Patents

エンドミルの再利用方法 Download PDF

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Publication number
WO2017163576A1
WO2017163576A1 PCT/JP2017/002071 JP2017002071W WO2017163576A1 WO 2017163576 A1 WO2017163576 A1 WO 2017163576A1 JP 2017002071 W JP2017002071 W JP 2017002071W WO 2017163576 A1 WO2017163576 A1 WO 2017163576A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
end mill
base material
blade portion
coaxiality
Prior art date
Application number
PCT/JP2017/002071
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
雅義 藤原
充浩 戸田
Original Assignee
グリーンツール株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by グリーンツール株式会社 filed Critical グリーンツール株式会社
Priority to CN201780015275.4A priority Critical patent/CN108698142B/zh
Priority to US16/085,649 priority patent/US10688569B2/en
Publication of WO2017163576A1 publication Critical patent/WO2017163576A1/ja

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/10—Shank-type cutters, i.e. with an integral shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/36—Milling milling-cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • B23P15/34—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools milling cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P6/00—Restoring or reconditioning objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/12—Cross section of the cutting edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/20—Number of cutting edges
    • B23C2210/203—Number of cutting edges four
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/24—Overall form of the milling cutter
    • B23C2210/241—Cross sections of the whole milling cutter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/44—Margins, i.e. the part of the peripheral suface immediately adacent the cutting edge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49718—Repairing
    • Y10T29/49721—Repairing with disassembling
    • Y10T29/49723—Repairing with disassembling including reconditioning of part
    • Y10T29/49725—Repairing with disassembling including reconditioning of part by shaping
    • Y10T29/49726—Removing material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/20—Gear cutting, milling, or planing with furbishing of cutter

Definitions

  • the present invention relates to a method of reusing an end mill that includes a cylindrical shank portion and a blade portion integral with the cylindrical shank portion and is used for cutting.
  • the end mill used for cutting has a cutting edge on the outer peripheral surface and the end surface, not only drilling but also face cutting, side cutting, stepping, grooving, curved cutting, etc. can be performed with one. Since an expensive metal material is used for the end mill, it is uneconomical to dispose of the end mill every time it reaches the end of its life due to blade wear. For this reason, the cutting performance has been recovered and reused by polishing the blade portion.
  • the third blade part to be newly processed has an outer diameter smaller than that of the grip part. That is, forming the third blade portion was the same as forming a new blade portion from a cylindrical raw material. For this reason, in order to process the third blade portion, high-accuracy processing is required again as in the case of processing the first blade portion and the second blade portion that have been formed from the beginning.
  • the present invention solves the above-described conventional problems, and provides a method for reusing an end mill that can reduce the work load when machining a new blade and can be reused efficiently. Objective.
  • an end mill reuse method of the present invention is a method of reusing an end mill having a cylindrical shank portion and a blade portion integral with the cylindrical shank portion, and the end mill is orthogonal to the axial direction.
  • a margin that is a part of a circle having the same diameter as the diameter of the shank portion is formed on the outer blade of the blade portion, and the base material of the end mill is required to have coaxiality in the blade portion.
  • the shank part is an unprocessed part left without cutting the base material, and the margin is formed by cutting the base material and removing the outer part.
  • the new shank part has the same shape as the cut blade part, the same degree of coaxiality and the same outer diameter without re-forming the formation of a new outer peripheral surface and ensuring the accuracy of the coaxiality.
  • all of the blades that are newly processed sequentially will have the same shape, accuracy of coaxiality and outer diameter as the original blade. It is characterized by doing.
  • a line indicating a cutting position of the blade portion is formed in the shank portion in advance along the outer periphery of the shank portion. According to this configuration, since the line is formed, not only the cutting position is clarified, but also the number of times that reworking is possible can be confirmed, and the total length at the time of reworking can be known.
  • the effect of the present invention is as described above, and a new blade portion is processed while leaving the outer peripheral surface of the shank portion as a margin. Therefore, it is not necessary to form a new outer peripheral surface when processing a new blade portion. This eliminates the need for processing to ensure the accuracy of the coaxiality again, reduces the work burden when processing the same blade portion as the original blade portion, and enables efficient reuse.
  • the side view which shows the external appearance of the end mill which concerns on one Embodiment of this invention. Sectional drawing in the AA line of FIG. The enlarged view of the outer periphery blade of the blade part shown in FIG. The side view which shows the creation process of the end mill which concerns on one Embodiment of this invention, and the process of reuse.
  • the end mill according to the present invention is a cutting tool, has a blade on both the side surface and the end surface, can cut the side surface of the workpiece on the outer peripheral surface, and can cut the upper surface of the workpiece on the end surface. Become. That is, it is possible to perform processing such as face cutting, side cutting, step cutting, grooving, curved surface cutting, drilling, drilling and the like with a single tool.
  • the present invention relates to a technique for efficiently reusing an end mill.
  • FIG. 1 is a side view showing an appearance of an end mill 1 according to an embodiment of the present invention.
  • an end mill 1 has a blade portion 2 and a cylindrical shank portion 3 integrated.
  • the blade part 2 is a part used for cutting
  • the shank part 3 is a part fixed to a chuck of a machine tool such as a machining center.
  • the base material of the end mill 1 before processing the blade portion 2 is processed in advance so that the coaxiality is the accuracy of the coaxiality required for the blade portion 2.
  • FIG. 2 is a cross-sectional view taken along the line AA in FIG.
  • FIG. 3 shows an enlarged view of the outer peripheral blade 5 of the blade portion 2 shown in FIG. 2 and 3, a margin 6 having a width w is formed on the outer blade 5 of the blade portion 2.
  • the formation surface of the margin 6 is on the circumference 7.
  • the diameter of the circumference 7 is the diameter of the blade part 2, and the diameter d (see FIG. 1) is the same as the diameter d of the shank part 3.
  • the margin 6 is formed for the purpose of improving the rigidity of the blade portion 2 and preventing chatter vibration during cutting.
  • the margin 6 is a part that contacts the object to be cut, it is required to be machined with high accuracy.
  • the margin 6 is a part of the blade portion 2 and, as described above, the formation surface of the margin 6 is on the circumference 7 and forms a part of the cylindrical surface. Therefore, the blade portion 2 is required to ensure the accuracy of this cylindrical surface. In the present embodiment, the accuracy of the cylindrical surface is specifically coaxial.
  • the shank portion 3 is a base material itself, and the cross section of the shank portion 3 is not shown, but the cross section of the shank portion 3 in the direction orthogonal to the axial direction of the end mill 1 is a circular cross section.
  • the base material of the end mill 1 is processed in advance so that the coaxiality is the accuracy of the coaxiality required for the blade portion 2, so that the shank portion 3 that is the base material itself is already in the shank portion 3.
  • the accuracy of the coaxiality required for the blade portion 2 is ensured.
  • the end mill reuse method according to the present embodiment will be specifically described with reference to the process of creating the end mill 1 and the process of reuse.
  • FIG. 4 is a side view showing the creation process and the reuse process of the end mill 1 according to the present embodiment.
  • FIG. 4A shows the base material 10 of the end mill 1.
  • the base material 10 is a cylindrical member, and the base material 10 is processed in advance so that the coaxiality is the accuracy of the coaxiality required for the blade portion 2.
  • the accuracy of the coaxiality of the base material 10 is not particularly limited, but is preferably 5 ⁇ m or less. As will be described later, in this embodiment, the accuracy of the coaxiality is ensured with respect to the accuracy of the coaxiality of the base material 10 for both the new blade portion 2 and the blade portion 2 that is created by reworking. Become. In this case, if the accuracy of the coaxiality is 5 ⁇ m or less, both the new blade portion 2 and the blade portion 2 created by reworking are suitable for high-precision cutting.
  • the base material 10 created by the inventors of the present application could have a roundness of 5 ⁇ m or less and a circumferential runout accuracy of 5 ⁇ m or less by setting the accuracy of the coaxiality to 5 ⁇ m or less.
  • the method of reusing the end mill 1 according to the present embodiment is to process a new blade portion 2 on the shank portion 3 when the blade portion 2 reaches the limit of polishing and reaches the end of its life.
  • the original blade portion 2 is the first blade portion 2a
  • the blade portion 2 that is reworked the first time is the second blade portion 2b
  • the blade portion 2 that is reworked the second time is the blade portion 2.
  • FIG. 4B shows a completed state (new state) of the end mill 1.
  • the first blade portion 2 a in this figure forms a margin 6 (see FIGS. 2 and 3) that is a part of a cylindrical surface having the same diameter as the diameter of the shank portion 3.
  • the margin 6 is the surface of the base material 10 itself, and the accuracy of the coaxiality of the first blade portion 2 a that leaves the surface of the base material 10 as the margin 6 is the same as the accuracy of the coaxiality of the base material 10. Therefore, if the accuracy of the coaxiality of the base material 10 is 5 ⁇ m or less, the accuracy of the coaxiality of the first blade portion 2a is also 5 ⁇ m or less. For this reason, in the process of the 1st blade part 2a, the process which ensures the precision of a coaxial degree becomes unnecessary.
  • Line 4 shows the cutting position when cutting the blade portion 2 that has reached the end of its life. Since the line 4 is formed, not only the cutting position is clarified, but also the number of times that reworking is possible can be confirmed, and the total length at the time of reworking can be known.
  • FIG. 4C shows a state in which the first blade portion 2a is cut at the position of the line 4 and the second blade portion 2b is processed into the shank portion 3 when the first blade portion 2a reaches the end of its life. Is shown.
  • the 2nd blade part 2b is the same shape as the 1st blade part 2a.
  • the processing of the second blade portion 2b is performed by processing the shank portion 3 while leaving a part of the outer peripheral surface of the shank portion 3 as a margin 6 (see FIGS. 2 and 3).
  • the margin 6 is a part of the outer peripheral surface of the shank portion 3, it is not necessary to form a new outer peripheral surface in order to form the margin 6 when processing the second blade portion 2b.
  • the shank part 3 is processed with the same coaxiality accuracy as the first blade part 2a, the coaxiality precision of the second blade part 2b is also the same as that of the first blade part 2a. . That is, even when the second blade portion 2b is processed, the processing for ensuring the coaxiality is not necessary.
  • FIG. 4D shows a state in which the second blade portion 2b is cut at the position of the line 4 when the second blade portion 2b reaches the end of life, and the third blade portion 2c is processed into the shank portion 3. Is shown.
  • the processing procedure of the third blade portion 2c is the same as that of the first blade portion 2a and the second blade portion 2b, and the processing of the third blade portion 2c is a part of the outer peripheral surface of the shank portion 3. Is left as a margin 6 (see FIGS. 2 and 3), and the shank portion 3 is processed.
  • the margin 6 is a part of the outer peripheral surface of the shank portion 3 as in the case of processing the first blade portion 2a and the second blade portion 2b. For this reason, when processing the third blade portion 2c, processing for forming a new outer peripheral surface in order to form the margin 6 becomes unnecessary. And since the shank part 3 is processed with the same accuracy of coaxiality as the first blade part 2a, the accuracy of the coaxiality of the third blade part 2c is the same as that of the first blade part 2a. . That is, when the third blade portion 2b is processed, the processing for ensuring the coaxiality is not necessary.
  • the second blade portion 2b and the third blade portion 2c that are newly machined sequentially are both the first blade portion 2a that has been originally provided and The accuracy of the outer diameter, shape, and coaxiality are all the same.
  • the new blade portion 2 is processed while leaving the outer peripheral surface of the shank portion 3 as the margin 6, so when processing the new blade portion 2, It is not necessary to form a new outer peripheral surface. For this reason, the process which ensures the accuracy of a coaxial degree again becomes unnecessary. That is, according to the recycle method of the end mill according to the present embodiment, it is possible to reduce the work burden when processing the same blade part 2 as the blade part 2 that was originally provided, and to enable efficient reuse. Become.
  • the end mill reuse method when the blade portion 2 reaches the end of its life, not only can cutting be performed using the new blade portion 2, but as described above, the blade The work burden when processing the part 2 newly can be reduced, and efficient reuse becomes possible. Thereby, in addition to the cost reduction by reuse, the production cost of the new blade part 2 can also be reduced, and a great effect can be obtained in terms of cost. For example, in order to process aircraft materials, a large amount of end mills made of expensive metal materials are used. Therefore, by using the end mill recycling method according to this embodiment, it is possible to significantly reduce tool costs. it can.
  • the blade part 2 to be newly processed has been described with two examples, but may be three or more.
  • the line 4 may be formed over the entire circumference of the base material 1 or may be formed in part.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)
PCT/JP2017/002071 2016-03-23 2017-01-23 エンドミルの再利用方法 WO2017163576A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780015275.4A CN108698142B (zh) 2016-03-23 2017-01-23 端铣刀的再利用方法
US16/085,649 US10688569B2 (en) 2016-03-23 2017-01-23 Reusing method of end mill

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-058486 2016-03-23
JP2016058486A JP6027700B1 (ja) 2016-03-23 2016-03-23 エンドミルの再利用方法

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WO2017163576A1 true WO2017163576A1 (ja) 2017-09-28

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US (1) US10688569B2 (zh)
JP (1) JP6027700B1 (zh)
CN (1) CN108698142B (zh)
WO (1) WO2017163576A1 (zh)

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CN109894823A (zh) * 2019-03-28 2019-06-18 王政 一种废弃车刀的改造再利用方法
CN111230433A (zh) * 2020-03-18 2020-06-05 王坚强 一种具有极高经济效益的磨浆机磨片多次循环利用工艺
CN112355583B (zh) * 2020-10-30 2022-03-11 陕西法士特汽车传动集团有限责任公司 一种废旧合金刀具回收利用的方法
US20230075742A1 (en) * 2021-09-03 2023-03-09 Makino Inc. Method for Manufacturing a Rotatable Tool Body to Minimize Cutting Insert Runout, a Tool Body Produced Therefrom, and a Method of Using Such a Tool Body

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JP2000190120A (ja) * 1998-12-28 2000-07-11 Hitachi Tool Engineering Ltd 強ねじれエンドミル
JP3082188U (ja) * 2001-05-25 2001-11-30 游 元文 再生利用構造を有するｐｃｂミリング・カッター
US20030002940A1 (en) * 2000-06-16 2003-01-02 Forth Andrew J. Rotary drilling and cutting tools for manufacturing printed circuit boards
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JP2008137096A (ja) * 2006-11-30 2008-06-19 Union Tool Co 切削工具及びその製造方法
JP2009148860A (ja) * 2007-12-21 2009-07-09 Mitsubishi Electric Corp エンドミルおよびそれを用いた加工方法
JP2012091259A (ja) * 2010-10-26 2012-05-17 Nachi Fujikoshi Corp エンドミル
JP2015039725A (ja) * 2013-08-20 2015-03-02 哲郎 橋本 回転切削工具を用いた回転切削工法及び回転切削工具の使用方法

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Publication number Priority date Publication date Assignee Title
JPH0482612A (ja) * 1990-07-25 1992-03-16 Toshiba Tungaloy Co Ltd 仕上げ用のエンドミル
JP2000190120A (ja) * 1998-12-28 2000-07-11 Hitachi Tool Engineering Ltd 強ねじれエンドミル
US20030002940A1 (en) * 2000-06-16 2003-01-02 Forth Andrew J. Rotary drilling and cutting tools for manufacturing printed circuit boards
JP3082188U (ja) * 2001-05-25 2001-11-30 游 元文 再生利用構造を有するｐｃｂミリング・カッター
CN101062539A (zh) * 2006-04-28 2007-10-31 尖点科技股份有限公司 再生切削工具的制造方法及其结构
JP2008137096A (ja) * 2006-11-30 2008-06-19 Union Tool Co 切削工具及びその製造方法
JP2009148860A (ja) * 2007-12-21 2009-07-09 Mitsubishi Electric Corp エンドミルおよびそれを用いた加工方法
JP2012091259A (ja) * 2010-10-26 2012-05-17 Nachi Fujikoshi Corp エンドミル
JP2015039725A (ja) * 2013-08-20 2015-03-02 哲郎 橋本 回転切削工具を用いた回転切削工法及び回転切削工具の使用方法

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Publication number Publication date
US20190084058A1 (en) 2019-03-21
JP6027700B1 (ja) 2016-11-16
JP2017170557A (ja) 2017-09-28
US10688569B2 (en) 2020-06-23
CN108698142B (zh) 2020-01-14
CN108698142A (zh) 2018-10-23

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